Scan Images

Use the system tests in this section to exercise all aspects of the system and to ensure system integrity before releasing to the customer. Although the means, standard deviation, and resolution specifications do not apply during system functional tests, treat any artifact or image anomaly as a failure.

If you replace a component: Correct artifacts, system test, or image series failures when they occur. Any delay in repairs could increase the number of retests.

1. Place the QA phantom on the cradle.

   • Drive the table to an elevation of 100.

   • Align the line on the phantom with the internal laser lights.

   Never scan above 50mA without first placing a phantom in the field of view. Levels in excess of 50mA can cause temporary radiation damage to the detector that lasts several hours. If you acquire image series cals with a radiation damaged detector, the cals may cause artifacts in subsequent image series scans.

2. Select the service protocol, System Scan/Cust Qual Reli.

   note:

   Stop the service protocol after the second helical series. It is not necessary to proceed past that point in the protocol.

   - OR -

   Manually select the scan parameters specified in Table 1 (below).

3. Complete the scans and check images.